Apparatus for exchanging a doctor blade in a rotary printing press
US5400710A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1994 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F31/027
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A chamber-type doctor blade apparatus for exchanging or replacing a doctor blade in a running printing press is disclosed. The apparatus includes a housing defining an elongated opening for slidably receiving a receiver carrying a doctor blade. When inserted in the elongated opening, the receiver pivots a sealing doctor blade against its normal bias and out of engagement with an applicator roller of the printing press. When the receiver is removed from the elongated opening the sealing doctor blade pivots back into engagement with the applicator roller thereby preventing printing fluids from exiting the chamber-type doctor blade apparatus through the elongated opening when the receiver is removed. As a result, the doctor blades of the chamber-type doctor blade apparatus can be replaced while the serviced printing machine is running.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.